Pre-filled aluminum foil sealing new crown detection extraction tube with good sealing performance
The utility model discloses a prefilled aluminum foil seal new crown detection extraction tube with good sealing performance, which comprises a tube body, an aluminum foil seal is adhered to the upper surface of the tube body, a fixing ring is fixedly connected to the surface of the tube body, two p...
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Format: | Patent |
Sprache: | chi ; eng |
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